Multi-stone honing tools are high-precision, very sturdy honing tools for honing of bores in a diameter range of 4 mm to over one meter. Several honing stones are arranged on the circumference of the tool. These are pressed by an internal cone against the bore, generating the desired honing material removal.

DIAHON multi-stone honing tools are significantly more efficient in comparison to single-stone honing tools in stock removal and in generation of the desired surface quality.

Multi-stone honing tools are designed as one-step tools or as double expansion tools (e.g., for plateau honing).